Symmetry in everyday language refers to a sense of harmonious and beautiful proportion and balance. In mathematics, "symmetry" has a more precise definition, that an object is invariant to any of various transformations; including reflection, rotation or scaling. Although these two meanings of "symmetry" can sometimes be told apart, they are related, so they are here discussed together.

A beautiful handwriting. Introduction Lisbon Script Font!. Lisbon was designed and shares by Mario Arturo. This 1940/50's font is traced from the 1993 edition of Novum Press book Schreibschriften/Script Types, compiled by Michael Rau & Rosemarie Kloos-Rau. I did add the punctuation marks for the book only had letters and numbers.